ifm
System Manual
ecomat
mobile
SmartController (CR2500) V05
Controller functions in the ecomatmobile controller
Functions for controllers
267
If X > XS, the manipulated variable is increased.
If X < XS, the manipulated variable is reduced.
A reference variable is internally added to the manipulated variable.
Y = Y + 65,536 – (XS / XMAX * 65,536).
The manipulated variable Y has the following time characteristics.
y
t
~T
V
T
N
KI * X
d
KP * X
d
KD
Figure: Typical step response of a PID controller
Parameters of the function inputs
Name
Data type Description
X WORD
Actual
value
XS WORD
Desired
value
XMAX
WORD
Maximum value of the desired value
KP
BYTE
Constant of the
P
roportional component (/10)
TN
TIME
Reset time (
I
ntegral component)
KD
BYTE
Proportional component of the
D
ifferential component (/10)
TV
TIME
Derivative action time (
D
ifferential component)
SO BOOL
Self-optimisation
RESET
BOOL
Reset the function
Parameters of the function outputs
Name
Data type Description
Y WORD
Manipulated
variable
Содержание Ecomat Mobile Series
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